keyword
MENU ▼
Read by QxMD icon Read
search

mitochondrial function

keyword
https://www.readbyqxmd.com/read/28549947/family-history-and-tomm40-523-interactive-associations-with-memory-in-middle-aged-and-alzheimer-s-disease-cohorts
#1
Auriel A Willette, Joseph L Webb, Michael W Lutz, Barbara B Bendlin, Alexandra M Wennberg, Jennifer M Oh, Allen Roses, Rebecca L Koscik, Bruce P Hermann, N Maritza Dowling, Sanjay Asthana, Sterling C Johnson
INTRODUCTION: Family history (FH) of Alzheimer's disease (AD) affects mitochondrial function and may modulate effects of translocase of the outer mitochondrial membrane 40 kDa (TOMM40) rs10524523 ('523) poly-T length on memory decline. METHODS: For 912 nonapolipoprotein ε4 middle-aged adults and 365 aged adults across the AD spectrum, linear mixed models gauged FH and TOMM40 '523 interactions on memory and global cognition between baseline and up to 10 years later...
May 10, 2017: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/28549842/mitochondrial-dysfunction-and-oxidative-stress-in-corneal-disease
#2
Neeru A Vallabh, Vito Romano, Colin E Willoughby
The cornea is the anterior transparent surface and the main refracting structure of the eye. Mitochondrial dysfunction and oxidative stress are implicated in the pathogenesis of inherited (e.g. Kearns Sayre Syndrome) and acquired corneal diseases (e.g. keratoconus and Fuchs endothelial corneal dystrophy). Both antioxidants and reactive oxygen species are found in the healthy cornea. There is increasing evidence of imbalance in the oxidative balance and mitochondrial function in the cornea in disease states...
May 23, 2017: Mitochondrion
https://www.readbyqxmd.com/read/28549733/divergent-roles-of-three-cytochrome-c-in-ctsb-modulating-coelomocyte-apoptosis-in-apostichopus-japonicus
#3
Huahui Chen, Miao Lv, Zhimeng Lv, Chenghua Li, Weiwei Zhang, Xuelin Zhao, Xuemei Duan, Chunhua Jin, Jinbo Xiong, Feng Xu, Ye Li
Cytochrome c plays crucial roles in apoptosis and the immune response. We previously demonstrated that cathepsin B from Apostichopus japonicus (AjCTSB) induces coelomocyte apoptosis. However, the mechanistic explanation and the regulation of this process have not been investigated. In the present study, we identified three cytochrome c cDNAs from A. japonicus (designated Ajcytc1, Ajcytc-1, and Ajcytc-2) using expressed sequence tag- (EST) and RACE-based approaches. The deduced amino acid sequences of the three cytochrome isoforms contained conserved CXXCH motifs, which are involved in binding heme and maintaining proteolytic activity...
May 23, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28549111/diabetic-db-db-mice-do-not-develop-heart-failure-upon-pressure-overload-a-longitudinal-in-vivo-pet-mri-and-mrs-study-on-cardiac-metabolic-structural-and-functional-adaptations
#4
Desiree Abdurrachim, Miranda Nabben, Verena Hoerr, Michael T Kuhlmann, Philipp Bovenkamp, Jolita Ciapaite, Ilvy M E Geraets, Will Coumans, Joost J F P Luiken, Jan F C Glatz, Michael Schäfers, Klaas Nicolay, Cornelius Faber, Sven Hermann, Jeanine J Prompers
Aim: Heart failure is associated with altered myocardial substrate metabolism and impaired cardiac energetics. Comorbidities like diabetes may influence the metabolic adaptations during heart failure development. We quantified to what extent changes in substrate preference, lipid accumulation, and energy status predict the longitudinal development of hypertrophy and failure in the non-diabetic and the diabetic heart. Methods and results: Transverse aortic constriction (TAC) was performed in non-diabetic ( db /+) and diabetic ( db/db ) mice to induce pressure overload...
May 26, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28549090/sigma-1-receptor-regulates-mitochondrial-function-in-glucose-and-oxygen-deprived-retinal-ganglion-cells
#5
Dorette Z Ellis, Linya Li, Yong Park, Shaoqing He, Brett Mueller, Thomas Yorio
Purpose: Understanding the role of mitochondria in retinal ganglion cells (RGCs) is relevant to human disease as studies have shown mitochondrial abnormalities in primary open-angle glaucoma patients. This study seeks to determine the effects of the sigma-1 receptor (σ-1r) and its agonists on mitochondrial function in oxygen- and glucose- deprived (OGD) purified neonatal RGCs. Methods: Retinal ganglion cells were isolated from rat pups and subjected to OGD in varying conditions in the presence or absence of σ-1r agonist and antagonist and following addition of an AAV2-σ-1r vector that was used to increase σ-1r expression...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28548902/er-mitochondria-signaling-regulates-autophagy
#6
Patricia Gomez-Suaga, Sebastien Paillusson, Christopher C J Miller
The endoplasmic reticulum (ER) and mitochondria form tight functional contacts that regulate a number of key cellular processes. The formation of these contacts involves "tethering proteins" that function to recruit regions of ER to mitochondria. The integral ER protein VAPB (VAMP associated protein B and C) binds to the outer mitochondrial membrane protein, RMDN3/PTPIP51 (regulator of microtubule dynamics 3) to form one such set of tethers. Recently, we showed that the VAPB-RMDN3 tethers regulate macroautophagy/autophagy...
May 26, 2017: Autophagy
https://www.readbyqxmd.com/read/28548540/nicotinamide-adenine-dinucleotide-nad-sup-sup-metabolism-and-neurodegeneration
#7
Mariana Pehar, Benjamin A Harlan, Kelby M Killoy, Marcelo R Vargas
SIGNIFICANCE: Nicotinamide adenine dinucleotide (NAD<sup>+</sup>) participates in redox reactions and NAD<sup>+</sup>-dependent signaling processes, which involve the cleavage of NAD<sup>+</sup> coupled to post-translational modifications of proteins or the production of second messengers. Either as a primary cause or as a secondary component of the pathogenic process, mitochondrial dysfunction and oxidative stress are prominent features of several neurodegenerative diseases...
May 26, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28546431/disruption-of-mitochondrial-electron-transport-chain-function-potentiates-the-pro-apoptotic-effects-of-mapk-inhibition
#8
Andrew P Trotta, Jesse D Gelles, Madhavika N Serasinghe, Patrick Loi, Jack L Arbiser, Jerry E Chipuk
The mitochondrial network is a major site of ATP production through the coupled integration of the electron transport chain (ETC) with oxidative phosphorylation. In melanoma, arising from the Val600Glu mutation in the kinase v-RAF murine sarcoma viral oncogene homolog B (BRAFV600E), oncogenic signaling enhances glucose-dependent metabolism, while reducing mitochondrial ATP production. Likewise, when BRAFV600E is pharmacologically inhibited by targeted therapies (e.g. PLX-4032/Vemurafenib), glucose metabolism is reduced and cells increase mitochondrial ATP production to sustain survival...
May 25, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28545030/mitochondrial-dna-sequencing-and-large-scale-genotyping-identifies-mt-nd4-gene-mutation-m-11696g-a-associated-with-idiopathic-oligoasthenospermia
#9
Juan Ji, Miaofei Xu, Zhenyao Huang, Lei Li, Hongxiang Zheng, Shuping Yang, Shilin Li, Li Jin, Xiufeng Ling, Yankai Xia, Chuncheng Lu, Xinru Wang
Genetic variants of mitochondrial DNA (mtDNA) were implicated to be associated with male infertility. Our previous whole mitochondrial genome sequencing and association study has identified two susceptibility mtDNA variants for oligoasthenospermia in Han Chinese men. In this study, we tested promising associations in an extended validation using 670 idiopathic oligoasthenospermia cases and 793 healthy controls to identify additional risk variants. We found that the genetic variant of m.11696G>A showed significantly higher frequency in the case group than that in the control group (odds ratio (OR) 2...
May 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28544614/proteomic-profiling-of-the-hypothalamus-in-two-mouse-models-of-narcolepsy
#10
Sausan Azzam, Daniela Schlatzer, David Nethery, Dania Saleh, Xiaolin Li, Afaf Akladious, Mark R Chance, Kingman P Strohl
Narcolepsy is a disabling neurological disorder of sleepiness linked to the loss of neurons producing orexin neuropeptides in the hypothalamus. Two well characterized phenotypic mouse models of narcolepsy, loss-of-function (orexin-knockout) and progressive loss of orexin (orexin/ataxin-3) exist. The open question is whether the proteomics signatures of the hypothalamus would be different between the two models. To address this gap, we utilized a label-free proteomics approach and conducted a hypothalamic proteome analysis by comparing each disease model to that of wild type...
May 22, 2017: Proteomics
https://www.readbyqxmd.com/read/28544355/temporal-overexpression-of-sirt1-in-skeletal-muscle-of-adult-mice-does-not-improve-insulin-sensitivity-or-markers-of-mitochondrial-biogenesis
#11
Kristoffer Svensson, Samuel A LaBarge, Vitor F Martins, Simon Schenk
AIMS: Activation of the NAD(+) dependent protein deacetylase SIRT1 has been proposed as a therapeutic strategy to treat mitochondrial dysfunction and insulin resistance in skeletal muscle. However, life-long overexpression of SIRT1 in skeletal muscle does not improve parameters of mitochondrial function and insulin sensitivity. In this study we investigated whether temporal overexpression of SIRT1 in muscle of adult mice would affect skeletal muscle mitochondrial function and insulin sensitivity...
May 22, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28544332/fibroblast-growth-factor-2-protects-against-renal-ischaemia-reperfusion-injury-by-attenuating-mitochondrial-damage-and-proinflammatory-signalling
#12
Xiao-Hua Tan, Xiao-Meng Zheng, Li-Xia Yu, Jian He, Hong-Mei Zhu, Xiu-Ping Ge, Xiao-Li Ren, Fa-Qing Ye, Saverio Bellusci, Jian Xiao, Xiao-Kun Li, Jin-San Zhang
Ischaemia-reperfusion injury (I/RI) is a common cause of acute kidney injury (AKI). The molecular basis underlying I/RI-induced renal pathogenesis and measures to prevent or reverse this pathologic process remains to be resolved. Basic fibroblast growth factor (FGF2) is reported to have protective roles of myocardial infarction as well as in several other I/R related disorders. Herein we present evidence that FGF2 exhibits robust protective effect against renal histological and functional damages in a rat I/RI model...
May 24, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28544069/cd38-enhances-the-proliferation-and-inhibits-the-apoptosis-of-cervical-cancer-cells-by-affecting-the-mitochondria-functions
#13
Shan Liao, Songshu Xiao, Hongxiang Chen, Manying Zhang, Zhifang Chen, Yuehua Long, Lu Gao, Guangchao Zhu, Junyu He, Shuping Peng, Wei Xiong, Zhaoyang Zeng, Zheng Li, Ming Zhou, Xiaoling Li, Jian Ma, Minghua Wu, Juanjuan Xiang, Guiyuan Li, Yanhong Zhou
Cervical cancer is one of the most common malignant tumors in women all over the world. The exact mechanism of occurrence and development of cervical cancer has not been fully elucidated. CD38 is a type II transmembrane glycoprotein, which was found to mediate diverse activities, including signal transduction, cell adhesion, and cyclic ADP-ribose synthesis. Here, we reported that CD38 promoted cell proliferation and inhibited cell apoptosis in cervical cancer cells by affecting the mitochondria functions. We established stable cervical cancer cell lines with CD38 over-expressed...
May 23, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28542832/integrated-transcriptomic-and-metabolomic-analysis-reveals-adaptive-changes-of-hibernating-retinas
#14
Yizhao Luan, Jingxing Ou, Vincent P Kunze, Fengyu Qiao, Yan Wang, Lai Wei, Wei Li, Zhi Xie
Hibernation is a seasonally adaptive strategy that allows hibernators to live through extremely cold conditions. Despite the profound reduction of blood flow to the retinas, hibernation causes no lasting retinal injury. Instead, hibernators show an increased tolerance to ischemic insults during the hibernation period. To understand the molecular changes of the retinas in response to hibernation, we applied an integrative transcriptome and metabolome analysis to explore changes in gene expression and metabolites of 13-lined ground squirrel retinas during hibernation...
May 25, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28542596/progressive-mitochondrial-protein-lysine-acetylation-and-heart-failure-in-a-model-of-friedreich-s-ataxia-cardiomyopathy
#15
Amanda R Stram, Gregory R Wagner, Brian D Fogler, P Melanie Pride, Matthew D Hirschey, R Mark Payne
INTRODUCTION: The childhood heart disease of Friedreich's Ataxia (FRDA) is characterized by hypertrophy and failure. It is caused by loss of frataxin (FXN), a mitochondrial protein involved in energy homeostasis. FRDA model hearts have increased mitochondrial protein acetylation and impaired sirtuin 3 (SIRT3) deacetylase activity. Protein acetylation is an important regulator of cardiac metabolism and loss of SIRT3 increases susceptibility of the heart to stress-induced cardiac hypertrophy and ischemic injury...
2017: PloS One
https://www.readbyqxmd.com/read/28542430/ros-regulation-of-axonal-mitochondrial-transport-is-mediated-by-ca2-and-jnk-in-drosophila
#16
Pin-Chao Liao, Lauren C Tandarich, Peter J Hollenbeck
Mitochondria perform critical functions including aerobic ATP production and calcium (Ca2+) homeostasis, but are also a major source of reactive oxygen species (ROS) production. To maintain cellular function and survival in neurons, mitochondria are transported along axons, and accumulate in regions with high demand for their functions. Oxidative stress and abnormal mitochondrial axonal transport are associated with neurodegenerative disorders. However, we know little about the connection between these two...
2017: PloS One
https://www.readbyqxmd.com/read/28542357/the-nrf2-transcription-factor-plays-a-dual-role-in-colorectal-cancer-a-systematic-review
#17
C Gonzalez-Donquiles, J Alonso-Molero, T Fernandez-Villa, L Vilorio-Marqués, A J Molina, V Martín
BACKGROUND: Colorectal cancer is one of the most common cancers worldwide, and is influenced by the interplay of various factors, including a very strong genetic component. For instance, incorrect mitochondrial biogenesis is correlated with increased risk of developing colorectal cancer. Thus, it is important to understand the consequences of changes in both the expression and the correct function of the transcription factors that regulate mitochondrial biogenesis, namely NRF2. OBJECTIVES: The main objective of this paper is to characterise the relationship between NRF2 and colorectal cancer by compiling data from an exhaustive literature search...
2017: PloS One
https://www.readbyqxmd.com/read/28542135/furanodienone-induces-g0-g1-arrest-and-causes-apoptosis-via-the-ros-mapks-mediated-caspase-dependent-pathway-in-human-colorectal-cancer-cells-a-study-in-vitro-and-in-vivo
#18
Ying Jiang, Xiaoqin Wang, Daode Hu
Furanodienone, a major bioactive constituents of sesquiterpene derived from Rhizoma Curcumae, has been proven to possess the potent anticancer efficacy on human breast cancer cells. Here, we investigated the cytotoxicity of furanodienone on human colorectal carcinoma cell lines in vitro and in vivo, as well as its underlying molecular mechanisms in the induction of apoptosis. In this study, we found that furanodienone significantly inhibited proliferation of RKO and HT-29 cells, induced mitochondrial dysfunction characterized by collapse of mitochondrial transmembrane potential and reduction of ATP level, and promoted the production of reactive oxygen species (ROS) that functions upstream of caspase-dependent apoptosis...
May 25, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28542130/activation-of-transient-receptor-potential-vanilloid-4-involves-in-hypoxia-reoxygenation-injury-in-cardiomyocytes
#19
Qiong-Feng Wu, Cheng Qian, Ning Zhao, Qian Dong, Jing Li, Bin-Bin Wang, Lei Chen, Lixiu Yu, Bing Han, Yi-Mei Du, Yu-Hua Liao
Transient receptor potential vanilloid 4 (TRPV4) is highly expressed in heart and vessels and can be activated during myocardial ischemia/reperfusion (I/R). Recently, we found that treatment with a selective TRPV4 antagonist HC-067047 significantly reduced infarct size, decreased troponin T levels and improved cardiac function in murine model myocardial I/R. This study was undertaken to investigate the mechanism underlying TRPV4-mediated myocardial I/R injury. To mimic myocardial I/R injury, we established a hypoxia/reoxygenation (H/R) model in H9C2 cells and neonatal rat ventricle myocytes (NRVMs) in vitro...
May 25, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28542026/combination-drug-therapy-of-pioglitazone-and-d-cycloserine-attenuates-chronic-orofacial-neuropathic-pain-and-anxiety-by-improving-mitochondrial-function-following-trigeminal-nerve-injury
#20
Danielle N Lyons, Liping Zhang, Jignesh D Pandya, Robert J Danaher, Fei Ma, Craig S Miller, Patrick G Sullivan, Cristian Sirbu, Karin N Westlund
OBJECTIVES: The study aim was to determine how peripheral trigeminal nerve injury affects mitochondrial respiration and to test efficacy of combined treatment with two FDA approved drugs with potential for improving mitochondrial bioenergetics, pain and anxiety related behaviors in a chronic orofacial neuropathic pain mouse model. METHODS: Efficacy of (R)-(+)-4-amino-3-isoxazolidinone (D-cycloserine, DCS), an NMDA antagonist/agonist, and Pioglitazone (PIO), a selective agonist of nuclear receptor peroxisome proliferator-activated receptor gamma (PPARγ) was investigate in the trigeminal inflammatory compression (TIC) neuropathic nerve injury mouse model...
May 24, 2017: Clinical Journal of Pain
keyword
keyword
50086
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"